package com.kbt.simcpux;

import java.security.MessageDigest;

public class MD5 {



		private static String byteArrayToHexString(byte b[]) {
			StringBuffer resultSb = new StringBuffer();
			for (int i = 0; i < b.length; i++)
				resultSb.append(byteToHexString(b[i]));

			return resultSb.toString();
		}

		private static String byteToHexString(byte b) {
			int n = b;
			if (n < 0)
				n += 256;
			int d1 = n / 16;
			int d2 = n % 16;
			return hexDigits[d1] + hexDigits[d2];
		}

		public static String MD5Encode(String origin, String charsetname) {
			String resultString = null;
			try {
				resultString = new String(origin);
				MessageDigest md = MessageDigest.getInstance("MD5");
				if (charsetname == null || "".equals(charsetname))
					resultString = byteArrayToHexString(md.digest(resultString
							.getBytes()));
				else
					resultString = byteArrayToHexString(md.digest(resultString
							.getBytes(charsetname)));
			} catch (Exception exception) {
			}
			return resultString;
		}

		private static final String hexDigits[] = { "0", "1", "2", "3", "4", "5",
				"6", "7", "8", "9", "a", "b", "c", "d", "e", "f" };


}
